Severfield-Rowen, which provided steel for London buildings including the Shard and the Cheesegrater on Leadenhall Street, plunged into the red this year, prompting an emergency rights issue and the departure of its former chief executive Tom Haughey.

“[Lawson] has a wide range of experience from 35 years in the construction industry,” said chairman John Dodds in a statement. “I have worked with Ian over many years and believe he brings the right mix of skills and experience to lead the group for the next phase of its growth and development.”

Dodds, currently executive chairman, will resume the role of non-executive chairman following Lawson’s appointment.